Project

# Title Team Members TA Documents Sponsor
6 Submarine Model
 Wenpeng Zhang
Yikai Xu
Yiqin Li
Zhicong Zhang
 design_document1.pdf
design_document2.pdf
proposal1.pdf
proposal2.pdf
 Pavel Loskot
Zhicong Zhang
Yikai Xu yikaixu3
Yiqin Li yiqinli2
Wenpeng Zhang wenpeng4

Submarine Model
Request For Approval

**Problem**
Moving on the ground or on the water, or in the air is relatively easy. This may not be the case when moving in the water. A remote-controlled submarine model can be used to simulate the performance of real submarines in a complex environment, showing the working principles of submarines to help understanding submarine technology and marine science.

**Solution overview**
Our solution involves implementing the functionality of a submarine through a remote-control system, an automatic stabilization and dynamic system, and drainage system. Additionally, we require an electronic control MCU to process remote control commands sent from a distance and handle signals from sensors to achieve submarine balance. Our novelty lies in balance in complex underwater environment and avoiding collision.

**Solution component**
Sensor Subsystem:
1. Pressure and infrared distance sensors: Measure the depth and object distance at which the submarine is operating.
2. Motion sensors: Monitor the speed and acceleration of the submarine's three-dimensional motion.

Processing Subsystem:
1. Main Controller (Microcontroller): Responsible for processing and interpreting sensor data, controlling the submarine's movement and operations.
2. Communication Module: Facilitates data communication with an external base or command center, conveying submarine status and mission information.
3. Automatic Stabilization Module: Utilize sensor data and apply PID control algorithms to realize automatic stabilization.

Power Subsystem:
1.Battery and electric Motors: Control the propulsion and maneuvering of the submarine to adapt to different depths and aquatic conditions.

Mechanical Subsystem:
1. Cabin: Used to the house rest of the subsystems and keep water out.
2. Water storage tank: Control the total weight of the submarine.

**Criterion for success**

1. Effective waterproof functionality.
2. [novelty] System's stability. Maintain the hull's balance under different water conditions.
3. Stable ascension and descent.
4. Forward/backward movements.
5. Various operational modes. Each performs at different applications. Such as Obstacle avoidance, cruise control, etc. (optional)

**Distribution of Work**
Zhicong Zhang: Mechanical part
Yikai Xu: Remote controlling and MCU part
Yiqin Li: Electricals part and control system part
Wenpeng Zhang: Software part

A crowd-sourcing urban air quality monitoring system with bikes

Kaiwen Hong, Zhengxin Jiang, Haofan Lu, Haoqiang Zhu

Featured Project

**Problem**

For public bike users, someone may concern about the air quality in which they are currently riding, as well as the places they are going to. However, currently there is no such an air quality monitoring system which provides air quality information in specific areas inside a city such as Haining.

**Solution Overview**

The idea is to apply air quality monitoring devices on the public bike system. The public bike system in Haining is a perfect carrier for IoT (Internet of Things) devices and urban sensing since it has a large and stable user group and all bikes are managed by official organization which means unified modification on all bikes can be done. A monitoring device integrated on the bike can provide the real-time information that users want to know and share data with other users through a cloud server. A real-time air quality map can be created for users with the contribution from all running bikes.

**Solution Components**

Subsystem 1 – on-bike air quality monitoring device. The subsystem is a stm32 microcontroller based design, integrated with air contaminant sensor, speed meter and data transmission modules. Once connected to a smartphone, the subsystem will keep transmitting real-time data to the smartphone.

Subsystem 2 – Software include a user interface and a server. The user interface can be either an app or a website on smartphone. The user interface receives sensor data from the hardware subsystem, displays the real-time statistics, uploads sensor data to server and receives the air quality map from server. The server processes data from all running bikes, creates a real-time air quality map and returns it back to users.

**Criterion for Success**

1. Success of data collection: stable real-time statistic display on user interface, stable data collection on server.

2. Air quality visualization: The air quality map correctly reflects the air quality in Haining city. For example, the concentration of air contamination should be higher in heavy traffic than in intl campus.

3. Speed control: The on-bike device or smartphone should give an alert when the monitored speed exceeds the upper limit or the user set range. This is not the core function of our design, but we add it as we think the function makes sense for safety purpose.